340221153254 has 4 divisors (see below), whose sum is σ = 510331729884. Its totient is φ = 170110576626.

The previous prime is 340221153191. The next prime is 340221153263. The reversal of 340221153254 is 452351122043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452351122043 = 53 ⋅8534926831.

It is a self number, because there is not a number n which added to its sum of digits gives 340221153254.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85055288312 + ... + 85055288315.

It is an arithmetic number, because the mean of its divisors is an integer number (127582932471).

Almost surely, 2^340221153254 is an apocalyptic number.

340221153254 is a deficient number, since it is larger than the sum of its proper divisors (170110576630).

340221153254 is a wasteful number, since it uses less digits than its factorization.

340221153254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170110576629.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 340221153254 its reverse (452351122043), we get a palindrome (792572275297).

The spelling of 340221153254 in words is "three hundred forty billion, two hundred twenty-one million, one hundred fifty-three thousand, two hundred fifty-four".